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Added unary operators +, -, ~ and !

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WerWolv
2021-01-07 00:41:06 +01:00
parent acfd5aa02f
commit b30bb21646
5 changed files with 34 additions and 4 deletions
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17
source/lang/parser.cpp
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@@ -68,13 +68,24 @@ namespace hex::lang {
throwParseError("expected integer or parenthesis");
}
// (parseFactor) <*|/> (parseFactor)
// <+|-|!|~> (parseFactor)
ASTNode* Parser::parseUnaryExpression() {
if (MATCHES(sequence(OPERATOR_PLUS) || sequence(OPERATOR_MINUS) || sequence(OPERATOR_BOOLNOT) || sequence(OPERATOR_BITNOT))) {
auto op = getValue<Token::Operator>(-1);
return new ASTNodeNumericExpression(new ASTNodeIntegerLiteral({ Token::ValueType::Signed32Bit, 0}), this->parseFactor(), op);
}
return this->parseFactor();
}
// (parseUnaryExpression) <*|/> (parseUnaryExpression)
ASTNode* Parser::parseMultiplicativeExpression() {
auto node = this->parseFactor();
auto node = this->parseUnaryExpression();
while (MATCHES(variant(OPERATOR_STAR, OPERATOR_SLASH))) {
auto op = getValue<Token::Operator>(-1);
node = new ASTNodeNumericExpression(node, this->parseFactor(), op);
node = new ASTNodeNumericExpression(node, this->parseUnaryExpression(), op);
}
return node;